scholarly journals Study on the preparation of TiO2/SiO2 and the treatment capacity of 2-chloroethyl ethyl sulfide on the surface of sensitive equipment and components

2020 ◽  
Vol 9 (3) ◽  
pp. 15-20
Author(s):  
Hue Hoang Kim ◽  
Long Le Van ◽  
Thai Hoang Thanh ◽  
Thao Le Minh
Keyword(s):  
Glass Surface ◽  
Flat Glass ◽  
Solvent System ◽  
Good Treatment ◽  
Chemical Agents ◽  
Rubber Surface ◽  
Chlorobutyl Rubber

The treatment of the surface of sensitive equipment and components, cotaminated by chemical agents is an important issue for the safety of population and security of structures. Material TiO2/SiO2 prepared and dispersed in a solvent system of ethanol/iso propanol/diethoxy methane has the good treatment with chloroethyl ethyl sulfide (2-CEES) on the surface of sensitive equipment and components. Treatment capacity depends on the tested surface and the number of treatments. Treatment capacity decreases from flat glass surface sensitive component surface pular rubber surface chlorobutyl rubber surface. The treatment does not affect the performance of sensitive components.

Laser Sub-Micron Patterning of Rough Surfaces by Micro-Particle Lens Arrays

2011 ◽  
Vol 1 (3) ◽  
pp. 1-9 ◽  
Author(s):  
Ashfaq Khan ◽  
Zengbo Wang ◽  
Mohammad A Sheikh ◽  
Lin Li
Keyword(s):  
Rough Surface ◽  
Self Assembly ◽  
Glass Surface ◽  
Rough Surfaces ◽  
Flat Glass ◽  
Surface Patterning ◽  
Laser Surface ◽  
New Method ◽  
Experimental Investigations ◽  
Sio2 Spheres

Laser surface patterning by Contact Particles Lens Arrays (CPLA) has been widely utilized for patterning of smooth surfaces but there is no technique developed by which CPLA can be deposited on a rough surface. For deposition of CPLA, conventional techniques require the surface to be flat, smooth and hydrophilic. In this study, a new method for the deposition of CPLA on a rough surface is proposed and utilized for patterning. In this method, a hexagonal closed pack monolayer of SiO2 spheres was first formed by self-assembly on a flat glass surface. The formed monolayer of particles was picked up by a flexible sticky surface and then placed on the rough surface to be patterned. A Nd:YVO4 laser was used to irradiate the substrate with the laser passing through the sticky plastic and the particles. Experimental investigations have been carried out to determine the properties of the patterns.

Potential of thermo-optical methods for the study of molecular layers bonded to a flat glass surface

2007 ◽  
Vol 62 (2) ◽  
pp. 126-135 ◽  
Author(s):  
D. A. Nedosekin ◽  
M. Yu. Kononets ◽  
M. A. Proskurnin ◽  
T. Yu. Chaikovskii ◽  
G. V. Lisichkin
Keyword(s):  
Glass Surface ◽  
Flat Glass ◽  
Optical Methods ◽  
Molecular Layers

Bakeable, all-metal demountable vacuum seal to a flat glass surface

2002 ◽  
Vol 20 (4) ◽  
pp. 1384-1389 ◽  
Author(s):  
N. Ng ◽  
R. E. Collins ◽  
M. Lenzen
Keyword(s):  
Glass Surface ◽  
Flat Glass

Laser Sub-Micron Patterning of Rough Surfaces by Micro-Particle Lens Arrays

2012 ◽  
pp. 130-139
Author(s):  
Ashfaq Khan ◽  
Zengbo Wang ◽  
Mohammad A Sheikh ◽  
Lin Li
Keyword(s):  
Rough Surface ◽  
Self Assembly ◽  
Glass Surface ◽  
Rough Surfaces ◽  
Flat Glass ◽  
Surface Patterning ◽  
Laser Surface ◽  
New Method ◽  
Experimental Investigations ◽  
Sio2 Spheres

Laser surface patterning by Contact Particles Lens Arrays (CPLA) has been widely utilized for patterning of smooth surfaces but there is no technique developed by which CPLA can be deposited on a rough surface. For deposition of CPLA, conventional techniques require the surface to be flat, smooth and hydrophilic. In this study, a new method for the deposition of CPLA on a rough surface is proposed and utilized for patterning. In this method, a hexagonal closed pack monolayer of SiO2 spheres was first formed by self-assembly on a flat glass surface. The formed monolayer of particles was picked up by a flexible sticky surface and then placed on the rough surface to be patterned. A Nd:YVO4 laser was used to irradiate the substrate with the laser passing through the sticky plastic and the particles. Experimental investigations have been carried out to determine the properties of the patterns.

Thermal-lens spectrometry for studying molecular layers covalently bonded to a flat glass surface

2002 ◽  
Vol 12 (1) ◽  
pp. 9-11 ◽  
Author(s):  
Mikhail Yu. Kononets ◽  
Svetlana N. Bendrysheva ◽  
Mikhail A. Proskurnin ◽  
Elena V. Proskurnina ◽  
Evgenii M. Min’kovskii ◽  
...  
Keyword(s):  
Thermal Lens ◽  
Glass Surface ◽  
Flat Glass ◽  
Thermal Lens Spectrometry ◽  
Covalently Bonded ◽  
Molecular Layers

Effect of Acetone and Kerosene on Skin Ultrastructure

1972 ◽  
Vol 30 ◽  
pp. 92-93
Author(s):  
A. P. Lupulescu ◽  
H. Pinkus ◽  
D. J. Birmingham
Keyword(s):  
Electron Microscopy ◽  
Human Skin ◽  
Osmium Tetroxide ◽  
Human Epidermis ◽  
Ultrastructural Changes ◽  
Chemical Agents ◽  
Skin Ultrastructure ◽  
Volar Surface

Our laboratory is engaged in the study of the effect of different chemical agents on human skin, using electron microscopy. Previous investigations revealed that topical use of a strong alkali (NaOH 1N) or acid (HCl 1N), induces ultrastructural changes in the upper layers of human epidermis. In the current experiments, acetone and kerosene, which are primarily lipid solvents, were topically used on the volar surface of the forearm of Caucasian and Negro volunteers. Skin specimens were bioptically removed after 90 min. exposure and 72. hours later, fixed in 3% buffered glutaraldehyde, postfixed in 1% phosphate osmium tetroxide, then flat embedded in Epon.

STUDIES ON THYROIDAL COLLOID PINOCYTOSIS USING A DOUBLE ISOTOPE TECHNIQUE

1972 ◽  
Vol 70 (1) ◽  
pp. 48-55 ◽  
Author(s):  
Mario A. Pisarev ◽  
Noe Altschuler ◽  
Leslie J. DeGroot
Keyword(s):  
Acid Phosphatase ◽  
Thyroid Hormone ◽  
Trichloroacetic Acid ◽  
Specific Activity ◽  
Acid Precipitation ◽  
Solvent System ◽  
Blood Stream ◽  
Radioactive Materials ◽  
Isotope Technique ◽  
Double Isotope

ABSTRACT The process of secretion of the thyroid hormone involves several steps: pinocytosis of thyroglobulin, fusion of the colloid droplets with the lysosomes, digestion of thyroglobulin by a cathepsin, dehalogenation of tyrosines and release of thyronines into the blood stream. The present paper describes a double isotope technique for studying the first two steps. Thyrotrophin (TSH) administration to rats increased the radioactivity present in all fractions, specially in the 15 000 × g pellet. When the subcellular distribution of acid phosphatase was determined, the highest specific activity was found in this fraction, thus indicating the presence of lysosomes. The content of radioactive materials in the 15 000 × g pellet was analyzed by trichloroacetic acid precipitation and by ascending paper chromatography using n-butanol:ethanol:ammonium hydroxide (5:1:2;v/v) as solvent system. The results obtained showed that 90% of the radioactivity was protein bound and strongly suggest that this material is thyroglobulin.

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